--- title: command-a-plus-05-2026-bf16 canonical_url: "https://www.modelscope.cn/models/CohereLabs/command-a-plus-05-2026-bf16" md_url: "https://www.modelscope.cn/models/CohereLabs/command-a-plus-05-2026-bf16.md" repository: CohereLabs/command-a-plus-05-2026-bf16 last_updated: 2026-06-15 license: apache-2.0 pipeline_tag: image-text-to-text tasks: - image-text-to-text model_type: - cohere2_vision architectures: - Cohere2VisionForConditionalGeneration parameters: 218.8B tensor_type: - BF16 library_name: - pytorch - transformer - safetensors frameworks: - pytorch language: - en - ar - bg - bn - ca - cs - da - de - el - es - et - fa - fi - fil - fr - ga - he - hi - hr - hu - id - is - it - ja - ko - lt - lv - ms - mt - nl - no - pa - pl - pt - ro - ru - sk - sl - sr - sv - ta - te - th - tr - uk - ur - vi - zh downloads: 865 stars: 0 tags: - conversational - chat --- # command-a-plus-05-2026-bf16 > command-a-plus-05-2026-bf16 - CohereLabs 在 ModelScope 开源的模型。Model Card for Command A+ CohereLabs/command-a-plus-05-2026-bf16 是 ModelScope 魔搭社区上的 218.8B 参数image-text-to-text模型，采用 apache-2.0 许可。 - **Repository**: CohereLabs/command-a-plus-05-2026-bf16 - **License**: apache-2.0 - **Tasks**: image-text-to-text - **Parameters**: 218.8B - **Tags**: conversational, chat - **Downloads**: 865 - **Stars**: 0 - **Last updated**: 2026-06-15 Source: https://www.modelscope.cn/models/CohereLabs/command-a-plus-05-2026-bf16 --- # **Model Card for Command A+** ## **Model Summary** Command A+ is an open source model with 25 billion active parameters and 218B total parameters model optimized for agentic, multilingual, and reasoning-heavy tasks with a focus on enterprise performance, while also providing support for vision inputs for processing image inputs. Developed by: [Cohere](https://cohere.com/) and [Cohere Labs](https://cohere.com/research) * Point of Contact: [**Cohere Labs**](https://cohere.com/research) * License: [Apache 2.0](https://www.apache.org/licenses/LICENSE-2.0) * Model: command-a-plus-05-2026 * Model Size: 25B active parameters, 218B total parameters * Context length: 128K input For more details about this model, please check out our [blog post](http://cohere.com/blog/command-a-plus). You can try out Command A+ before downloading the weights in our hosted [Hugging Face Space](https://huggingface.co/spaces/CohereLabs/command-a-plus-05-2026). **Available quantizations** The following quantizations are available with example minimum GPU requirements | Quantization | Blackwell | Hopper | | :---- | :---- | :---- | | [BF16 (16-bit)](https://huggingface.co/CohereLabs/command-a-plus-05-2026-bf16) | 4 x B200 | 8 x H100 | | [FP8 (8-bit)](https://huggingface.co/CohereLabs/command-a-plus-05-2026-fp8) | 2 x B200 | 4 x H100 | | [W4A4 (4-bit)](https://huggingface.co/CohereLabs/command-a-plus-05-2026-w4a4) | 1 x B200 | 2 x H100 | All three quantizations show negligible differences in benchmark quality and performance. **Our recommended quantization for most uses is [W4A4](https://huggingface.co/CohereLabs/command-a-plus-05-2026-w4a4) which boasts superior speed and latency characteristics alongside a smaller hardware footprint.** For more details, please check out our [blog post](http://cohere.com/blog/command-a-plus). **Usage** **Transformers** Please install transformers from the source repository that includes the necessary changes for this model. ```py # pip install transformers from transformers import AutoTokenizer, AutoModelForImageTextToText model_id = "CohereLabs/command-a-plus-05-2026-bf16" tokenizer = AutoTokenizer.from_pretrained(model_id) model = AutoModelForImageTextToText.from_pretrained(model_id) # Format message with the command-a-plus-05-2026-bf16 chat template messages = [{"role": "user", "content": "What has keys but can't open locks?"}] input_ids = tokenizer.apply_chat_template( messages, tokenize=True, add_generation_prompt=True, return_tensors="pt", ) gen_tokens = model.generate( input_ids, max_new_tokens=4096, do_sample=True, temperature=0.6, top_p=0.95 ) gen_text = tokenizer.decode(gen_tokens[0]) print(gen_text) ``` As a result, you should get an output that looks like this, where the thinking is generated between the `` and ``: ```py <|START_THINKING|>The user asks a riddle: "What has keys but can't open locks?" The answer is a piano (or keyboard). So respond with answer.<|END_THINKING|> ``` You can also use the model directly using transformers pipeline abstraction: ```py from transformers import pipeline import torch model_id = "CohereLabs/command-a-plus-05-2026-bf16" tokenizer = AutoTokenizer.from_pretrained(model_id) pipe = pipeline( "text-generation", model=model_id, dtype="auto", device_map="auto", ) messages = [ {"role": "user", "content": "Explain the Transformer architecture"}, ] text = tokenizer.apply_chat_template( messages, tokenize=False, add_generation_prompt=True, ) outputs = pipe( messages, max_new_tokens=300, ) print(outputs[0]["generated_text"][-1]) ``` **vLLM** You can also run the model in vLLM. `vllm>=0.21.0` is required for Command A+ and accurate response parsing also requires installing [Cohere’s `melody` library](https://pypi.org/project/cohere-melody/). ``` uv pip install vllm>=0.21.0 uv pip install transformers uv pip install cohere_melody>=0.9.0 ``` Then the vllm server can be started with the following command: ``` # This is for B200, adjust tp for your device vllm serve CohereLabs/command-a-plus-05-2026-bf16 -tp 4 --tool-call-parser cohere_command4 --reasoning-parser cohere_command4 --enable-auto-tool-choice ``` ## **Model Details** **Input**: Text and images. **Output**: Model generates text. **Model Architecture**: Command A+ is a decoder-only Sparse Mixture-of-Experts Transformer Model. With 25B active parameters and 218B total parameters, it has 128 experts, out of which 8 are active per token, and a single shared expert is applied to all tokens. The attention layers interleave sliding-window attention layers with Rotational Positional Embeddings and global attention layers without positional embeddings in a 3:1 ratio, as first introduced in Command A. The sparse MoE layer is trained in a fully dropless manner and uses a token-choice router. We use additive-bias-based load balancing to encourage balanced token load across all experts, and swap out the softmax router activation function with a normalized sigmoid over the topk expert logits per token. **Languages covered:** The model has been trained on 48 languages: English, Arabic, Bulgarian, Bengali, Catalan, Czech, Danish, German, Greek, Spanish, Estonian, Persian, Finnish, Filipino, French, Irish, Hebrew, Hindi, Croatian, Hungarian, Indonesian, Icelandic, Italian, Japanese, Korean, Lithuanian, Latvian, Malay, Maltese, Dutch, Norwegian, Punjabi, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Serbian, Swedish, Tamil, Telugu, Thai, Turkish, Ukrainian, Urdu, Vietnamese, Chinese. **Context Length:** Command A+ supports a context length of 128K & 64K output length. ### **Tool Use Capabilities:** Command A+ has been specifically trained with conversational tool use capabilities. This allows the model to interact with external tools like APIs, databases, or search engines. Tool use with Command A+ is supported through [chat templates](https://huggingface.co/docs/transformers/main/en/chat_templating#advanced-tool-use--function-calling) in Transformers. We recommend providing tool descriptions using JSON schema.
Tool Use Example [CLICK TO EXPAND] ```py from transformers import AutoTokenizer model_id = "CohereLabs/command-a-plus-05-2026-bf16" tokenizer = AutoTokenizer.from_pretrained(model_id) # Define tools tools = [{ "type": "function", "function": { "name": "query_daily_sales_report", "description": "Connects to a database to retrieve overall sales volumes and sales information for a given day.", "parameters": { "type": "object", "properties": { "day": { "description": "Retrieves sales data for this day, formatted as YYYY-MM-DD.", "type": "string", } }, "required": ["day"], }, }, }] # Define conversation input conversation = [ {"role": "user", "content": "Can you provide a sales summary for 29th September 2023?"} ] # Tokenize the Tool Use prompt directly input_ids = tokenizer.apply_chat_template( conversation=conversation, tools=tools, tokenize=True, add_generation_prompt=True, return_tensors="pt", ) ``` You can then generate from this input as normal. If the model generates a plan and tool calls, you should add them to the chat history like so: ```py tool_call = {"name": "query_daily_sales_report", "arguments": {"day": "2023-09-29"}} thinking = "I will use the query_daily_sales_report tool to find the sales summary for 29th September 2023." conversation.append({"role": "assistant", "tool_calls": [{"id": "0", "type": "function", "function": tool_call}], "thinking": thinking}) ``` and then call the tool and append the result, as a dictionary, with the tool role, like so: ```py api_response_query_daily_sales_report = {"date": "2023-09-29", "summary": "Total Sales Amount: 10000, Total Units Sold: 250"} # this needs to be a dictionary!! # Append tool results conversation.append({"role": "tool", "tool_call_id": "0", "content": api_response_query_daily_sales_report}) ``` After that, you can generate() again to let the model use the tool result in the chat. Note that this was a very brief introduction to tool calling \- for more information, see the Transformers [tool use documentation](https://huggingface.co/docs/transformers/main/chat_templating#advanced-tool-use--function-calling).
Tool Use With Citations [CLICK TO EXPAND] Optionally, one can ask the model to include grounding spans (citations) in its response to indicate the source of the information, by using `enable_citations=True` in `tokenizer.apply_chat_template(*)`. The generation would look like this: ``` On 29th September 2023, the total sales amount was 10000 and the total units sold were 250. ``` When citations are turned on, the model associates pieces of texts (called "spans") with those specific tool results that support them (called "sources"). Command A+ uses a pair of tags `` and `` to indicate when a span can be grounded onto a list of sources, listing them out in the closing tag. For example, `span` means that "span" is supported by result 1 and 2 from `tool_call_id=0` as well as result 0 from `tool_call_id=1`. Sources from the same tool call are grouped together and listed as `{tool_call_id}:[{list of result indices}]`, before they are joined together by ",".
## **Model Card Contact** For errors or additional questions about details in this model card, contact \[[labs@cohere.com](mailto:labs@cohere.com)\]. **Try it now:** You can try Command A+ in the [playground](https://dashboard.cohere.com/playground/chat?model=command-a-plus-05-2026). You can also use it in our dedicated [Hugging Face Space](https://huggingface.co/spaces/CohereLabs/command-a-plus-05-2026).